[2020] 2 Copies of Tom Clancy's Rainbow Six Siege linked to 1 uplay account

Hi there, i bought a second copy of Tom Clancy's Rainbow Six Siege on Steam. Then i launched the game from steam and i was still logged into my account on Ubisofty that already had a copy of Tom Clancy's Rainbow Six Siege. Now the two accounts are merged. I cant unlink the account. When i made a new ubisoft account and launched Tom Clancy's Rainbow Six Siege from Steam into my new ubisoft account it says "THERE WAS A PROBLEM AUTHENTICATING THE OWNERSHIP OF THIS PRODUCT". Can i get that copy on my new second account instead of having 2 copys of Tom Clancy's Rainbow Six Siege on one ubisoft account.